We have mix of PMP 100, 450, and ePMP without NAT. ePMP has security to limit DHCP request by limiting number of MAC connections on ethernet but I see no way of limiting SNMP to single IP -unless adding the IP of the trap server limits the SM to only the address. The 450 gear has a way to limit SNMP to single IP (I think) but I see no way to limit DHCP request to number of desired MAC addresses. I'd prefer to have this set at the SM and not in incase I should ever need to do a custom link. Any advice?